227   int res;  in match_class()  local
229     case 'a' : res = isalpha(c); break;  in match_class()
230     case 'c' : res = iscntrl(c); break;  in match_class()
231     case 'd' : res = isdigit(c); break;  in match_class()
232     case 'l' : res = islower(c); break;  in match_class()
233     case 'p' : res = ispunct(c); break;  in match_class()
234     case 's' : res = isspace(c); break;  in match_class()
235     case 'u' : res = isupper(c); break;  in match_class()
236     case 'w' : res = isalnum(c); break;  in match_class()
237     case 'x' : res = isxdigit(c); break;  in match_class()
238     case 'z' : res = (c == 0); break;  in match_class()
241   return (islower(cl) ? res : !res);  in match_class()
308     const char *res = match(ms, (s+i), ep+1);  in max_expand()  local
309     if (res) return res;  in max_expand()
319     const char *res = match(ms, s, ep+1);  in min_expand()  local
320     if (res != NULL)  in min_expand()
321       return res;  in min_expand()
331   const char *res;  in start_capture()  local
337   if ((res=match(ms, s, p)) == NULL)  /* match failed? */  in start_capture()
339   return res;  in start_capture()
346   const char *res;  in end_capture()  local
348   if ((res = match(ms, s, p)) == NULL)  /* match failed? */  in end_capture()
350   return res;  in end_capture()
419           const char *res;  in match()  local
420           if (m && ((res=match(ms, s+1, ep+1)) != NULL))  in match()
421             return res;  in match()
520       const char *res;  in str_find_aux()  local
522       if ((res=match(&ms, s1, p)) != NULL) {  in str_find_aux()
525           lua_pushinteger(L, res-s);   /* end */  in str_find_aux()
529           return push_captures(&ms, s1, res);  in str_find_aux()